Sahih Muslim | Book 10 | Hadith Number 3696

Narrated by Ibn 'Umar (Allah be pleased with them)
Ibn 'Umar (Allah be pleased with them) reported Allah's Messenger (may peace be upon him) having forbidden Muzabana, and Muzabana is the selling of dry dates by measure for fresh dates and the selling of raisins by measure for grapes and selling of all Ports of fruits on the basis of calculation.